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> Maxim MAX1617 max 1617 smbus interface ic 16PIN qsop
Maxim MAX1617 max 1617 smbus interface ic 16PIN qsop
Model: max1617 (Interface IC)
Remote/Local Temperature Sensor with SMBus Serial Interface
The MAX1617 is a precise digital thermometer that reports the temperature of both a remote sensor and its own package. The remote sensor is a diode-connected transistor typically a low-cost, easily mounted 2N3904 NPN type that replaces conventional thermistors or thermocouples. Remote accuracy is 3 C for multiple transistor manufacturers, with no calibration needed. The remote channel can also measure the die temperature of other ICs, such as microprocessors, that contain an on-chip, diode-connected transistor.
The 2-wire serial interface accepts standard System Management Bus (SMBus ) Write Byte, Read Byte, Send Byte, and Receive Byte commands to program the alarm thresholds and to read temperature data. The data format is 7 bits plus sign, with each bit corresponding to 1 C, in two's complement format. Measurements can be done automatically and autonomously, with the conversion rate programmed by the user or programmed to operate in a single-shot mode. The adjustable rate allows the user to control the supply-current drain.
The MAX1617 is available in a small, 16-pin QSOP surface-mount package.
* Two Channels: Measures Both Remote and Local Temperatures
* SMBus 2-Wire Serial Interface
* Programmable Under/Overtemperature Alarms
* Supports SMBus Alert Response
* 2 C (+60 C to +100 C, local)
* 3 C (-40 C to +125 C, local)
* 3 C (+60 C to +100 C, remote)
* 3 A (typ) Standby Supply Current
* 70 A (max) Supply Current in Auto-Convert Mode
* Small, 16-Pin QSOP Package
Central Office Telecom Equipment
Computers: Desktop, Workstation, Server
Test and Measurement Equipment
MAX1617: Typical Operating Circuit
